电子勤学本,是一种特制的作业本。在使用这种本子的时候,它一旦探测出你写作业时思想不集中,就会让你写在作业本上的字消失,只有等到你思想集中时,本子上的字才会停止消失。还有些同学在写作业时,为了偷懒往往会故意少写几项作业,勤学本这时就会放出微弱的电流让偷懒的同学全身都麻 Electronic attendance books, is a special operation of the book. When you use this book, once it detects that you are not thinking well when you write a homework, it will make the word you write in the homework disappear. Only when your thoughts are concentrated will the words in the book stop. There are still some students writing homework, in order to be lazy tend to deliberately write a few homework, diligence this time will be released a weak current so lazy students whole body numb